pillwort | sense examples, Usage and Definition from wordnet dictionary online

Noun pillwort has 1 sense

pillwort, Pilularia globulifera - European water fern found around margins of bodies of water or in wet acid soil having small globose sporocarps
--₁ is a kind of aquatic fern, water fern
--₁ is a member of Pilularia, genus Pilularia